Respuesta :

The gravitation acceleration on the earth surface is equivalent to 10 N per kg.
Therefore a student with a weight of 50 kg exerts a force equivalent to;
  the mass of the student multiplied by the gravitation acceleration
 50 kg × 10 N/kg = 500 N
thus the force/weight exerted on the earth surface is 500 N

Answer:

500 newtons

Explanation:

took it on test